MAIN COOLING WATER PUMPS PROTECTED WITH BELZONA

KHIA ID: 985
Industry: Power (POWR)
Application: CEP-Centrifugal Pumps (CEP)
Substrate: Cast iron
Customer Location: Coal fired power station - UK
Application Date: 2004
Products:

Belzona® 1111 (Super Metal)

Belzona® 1341 (Supermetalglide)

Problem: Erosion corrosion particularly on main wearing rings, cut water and delivery tubes.
Photograph Descriptions
  1. Scale of pumps can be gauged from the delivery tubes
  2. Suction side coated
  3. Degree of corrosion evident on the delivery tubes
  4. Completed coating
Application Situation
Allen Gwynnes cooling pumps. These pumps are capable of delivering 120,000 gallons of cooling water per minute.
Application Method
Carried out in accordance with Belzona system leaflets CEP-1 and CEP-3. Particular attention was paid to surface preparation with repeated steam cleaning and grit blasting used to remove salt contamination.
Belzona Facts
A competitive ceramic coating had previously been used. Although lower in cost it did not provide the efficiency enhancement that Belzona® 1341 does with its subsequent pay-back. Application still OK in 2007.
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